Laterally-movable tuyere



Dec. 19, 1922. 1,439,578. 1. H. ROACH.

LATERALLY MOVABLE TUERE.

HLED JAN-27. I920.

FTHE.

Patented Dec. 19, 1922.

UNITED STATES PATENT OFFICE.

JOSEPH H. ROACH, F BROOKLINE, PENNSYLVANIA.

LATERALLY-MOVAIBLE TUYERE.

To all whom it may concern Be it known that I, JOSEPH H. Bolton, a citizen of the United States residing at Brookline in the county of lselaware and State of lennsylvania, have invented cer tain new and useful Improvements in Laterally-Movable Tuyeres. of which the following is a specification.

This invention relates to laterally movahle tuyeres forming part of the fuel supporting surface for a furnace or other combustion chamber, and has for an object to provide tuyeres composed of independent and interchangeable, juxtaposed blocks presenting registering recesses which in combination produce apertures for tuyere openings for the eduction of air from the air ducts underlying the fire supporting structure.

With these and other objects, the invention comprises certain novel units, combinations and arrangements of parts and units as will be hereinafter more fully described and claimed.

Referring to the accompanying drawings, which are made a part hereof, and on which similar reference characters indicate similar parts,

Figure 1 is a vertical transverse sectional an view through a plurality of tuyeres of the rocking type,

Figure 2 is a view in elevation of a conventional means for actuating the laterally movable tuyercs,

Figure 3 is a perspective view of one of the tuyere units of the rocking type, and

Figure 4 is a sectional view showing in elevation one of the tuyere units of the slid ing type.

The laterally movable tuyere which forms the subject matter of this application may be embodied in a variety of specific structures provided only that a means is secured for producing lateral movement of the is tuyere relative to the supportingmembers.

In Figure 1 a conventional furnace is indicated by the walls 10 and at Figure 2 by'the front 10'. Within the furnace structure a plurality of supporting members 11 are erected preferably, though not necessarily, forming the u standing edges of retorts 12 which retorts orm no part of the present invention except so far as they may be properly spaced apart to support the tuyeres.

Above the spaced supporting members, shafts 13 are journaled, the supporting members being provided at their upper edges with curved bearing surfaces 1 1 struck upon an arc with the center of the shaft 13 as the center of curvature.

The tuyeres which are mounted to rock in the curved bearing surfaces 14 are of any length that the exigencies of use may make desirable and are built up of units 15 having means for rigid engagement with the shaft 13 as by constructing the shaft 13 square and providing the units 15 with squared openings 16. It is obvious that any other equivalent means of attaching the units to the shaft may be substituted. As many of the units 15 are employed, juxtaposed upon the shaft 13 as will unitedly produce the length of tuyere the fire-supporting surface makes necessary. Each of the units comprises a web 17 with ribs 18 about the periphery forming recesses 19, the opposite sides of said blocks being substantially similar and the recesses registering whereby the registering recesses produce tuyere openings which are fed through the opening 20 with air from air ducts 21 underlying the tuyeres. The lower surface of each tuyere unit is curved as at 22 to correspond to the curved bearing surface 14 of the collocating supporting members, the ribs 23 being in engagement with the similar ribs of the adjacent block so that the air passes from the air ducts 21 only upwardl through the openin 20 and is then divi ed to be discharged through the several tuyere openings into the fuel mass between and covering the tuyres.

Any approved and convenient means may be employed for rocking the tuyeres. A conventional means is here shown consisting of a. lever 24 pivoted at 25 having a walking 9:, beam 26. Links 27 and 28 connect to opposite ends of the walking beam 26 while other links 29 and 30 unite the arms 31 of the she it l l into pairs, rocking simnlls neously in opposite directions. in Figure 2 arrows are employed to indicate the movement of the lever it both Way. from normah while at Figure l dotted lines are employed to show the movement of the tnycres to their limit in one direction, while broken lines are t-iunloyed to show the movement of the tuyere to their limit in the opposite direction.

Instead of having the tuyere rock structure may be employ *d as shown at Figure wherein the blocks slide upon the flanges of the supporting structures ii. The units 32 shown at Figure 4 which, combined as hereinbefore described. make up the complete tuyere, are mounted to slide upon the flanges 33 of the supporting members 11 undercuts 3% being provided to accommodate the flanges. The shaft 13 difiers from the shaft 13 in that lugs or ribs 35 are provided engaging notches 36 in the undersides of the units 32 whereby such units are moved with the oscillation of the lug or rib 35. It is obvious that in this type the member 35 may extend throughout the entire length of the shaft 13 and simultaneously slide all of the blocks laterally or may engage alternate or other portions of the blocks moving such blocks only, the intermediate blocks remaining stationary. It is immaterial to the present invention Whether all of such blocks move or Whether some move and others are stationary, the result attained being substantially equivalent to that of moving the tuyere members laterally for the purpose of breaking up and agitating the coked mass.

lVith the employment of either type of laterally movable tuyere the lateral movements may occur at such times and intervals as the exigencies of ignition may make necessary or desirable. and if found desirable meehanical and automatic means may be employed for the purpose of moving the tuyres. but such moving mean forming no part of the present invention, is only suggested a me chnnical equivalent for the manual means disclosed by the lever 24: and is not intended to enlarge or restrict the scope of the invention.

Having thus des ribed my said invention, what claim as new and desire to secure by letters Patent. is:

l. A tire supporting structure omprising a plurality of pa rs of supporting members having urved surfaces, a tnyere supported for rocking movement on the'enrved surfaces of each pair and ea h tnyere having inlet and outlet passages for air substantially as set forth.

2. A fire supporting structure comprising a plurality of pairs of supporting members having opposed curved surfaces struck from the-same center. a tuyere supported on each pair of opposed surfaces. and each tuyere having an air inlet below and air outlets at ts opposite sides, substantially as set forth.

3. A fir supporting structure comprising a pair of spaced supporting members forming a section of the upper wall of an. air duct, a tuyerc resting on said surfaces and having an opening in its lower part to communicate with the air duct and symmetrically placed outlet openings in its opposite sides, substantially as set forth.

4. A fire supporting structure comprising a pair of spaced supporting members forum ing a section of the upper wall oi an air duct, a tuyere resting on said surfaces and having an opening in its lower part to communicate with the air duct and the upper ortion having equal arcuate sides with. outet openings therein substantially as set forth.

5. A fire-supporting structure comprising supporting members spaced apart to form an air duct therebctiveen, a tuvere mounted upon the upper spaced edges oi the supporting members and spanning the air duct and composed of a plurality of blocks juxtaposed, each of said blocks being provided with recesses forming with the adjacent block laterally directed tuyere openings in communication with the air duct, and means to move the blocks laterally relative to the supporting structure.

6. A fire-supporting structure com nising a plurality of supporting members spaced apart to form an air duct therebetween, a tuyre supported upon the upper spaced edges of the supporting members and composed of a plurality of juxtaposed blocks, each of said blocks comprising a Web and spaced ribs forming recesses between the ribs registering with like recesses in the adjacent block such combined recesses forming laterally directed tuyere openings in connection with the air duct, and means to move the blocks laterally.

7. A tuyere composed of a plurality of blocks each oi said bloc-ks having an arcuate bearing surface and ribs forming laterally directed. recesses, and with means tor engaging a collocatiug member.

8. A tuyerc comprising u plurality ol blocks having arcuate hearing snrt'aees, each of said blocks provided with laterally ex tending ribs forming laterally tlllefitfi'il tuyere openings and a sbatt extending through and uniting the several blocks and disposed with its center as the center a! curvature of the alienate bearing surface.

9. A tuyere provided upon its underside with a bearing surface and upon its lateral faces with ribs forming recesses therebetween and with means for engaging a collocating member.

10. A tuyre block comprising web havribs "outstanding from its opposite faces forming recesses therebetweent some of said llfl recesses being, outlet recesses and others of In Witness whereof, I have hereunto set sand recesses belng 1nlet recesses, and means my hand and seal at Phlladelphla, Pm, thls 10 to engage upon a, collocating member. twenty-sixth day of January, A. D. nine- 11. An ovoid-shaped tuyere block proteen hundred and twenty.

vided upon its are of larger radius with a JOSEPH H. ROACH. [1 s] bearing surface and about its other areuate Witnesses:

peripheral surfaces with members forming PIERCE ARCHER, J r.,

therebetween tuyere openings. C. RAYMOND IRELAND. 

